Home / 12,128,224.80-18,192,337.20-8,036,129.10

Finding the Fourth Proportional to 12,128,224.80, 18,192,337.20 and 8,036,129.10

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Solution

The fourth proportional to 12,128,224.80, 18,192,337.20 and 8,036,129.10 is: 12,054,193.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,224.80 : 18,192,337.20 = 8,036,129.10 : x
  2. Step 2: Convert to fraction form
    12,128,224.80/18,192,337.20 = 8,036,129.10/x
  3. Step 3: Cross multiply
    12,128,224.80x = 18,192,337.20 × 8,036,129.10
  4. Step 4: Simplify right side
    12,128,224.80x = 146,195,970,369,932.50
  5. Step 5: Solve for x
    x = 146,195,970,369,932.50/12,128,224.80
  6. Step 6: Final answer
    x = 12,054,193.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.